WO2015195287A1 - Algorithmes et mise en œuvre de capteurs de pression de toucher - Google Patents

Algorithmes et mise en œuvre de capteurs de pression de toucher Download PDF

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Publication number
WO2015195287A1
WO2015195287A1 PCT/US2015/032884 US2015032884W WO2015195287A1 WO 2015195287 A1 WO2015195287 A1 WO 2015195287A1 US 2015032884 W US2015032884 W US 2015032884W WO 2015195287 A1 WO2015195287 A1 WO 2015195287A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
sensor
sensors
electronic display
touch
Prior art date
Application number
PCT/US2015/032884
Other languages
English (en)
Inventor
Oberon Denaci DEICHMANN
Jacques Gollier
William James Miller
Lucas Wayne YEARY
Original Assignee
Corning Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Incorporated filed Critical Corning Incorporated
Priority to CN201580042334.8A priority Critical patent/CN106575185A/zh
Priority to KR1020177000978A priority patent/KR20170016981A/ko
Priority to US15/319,176 priority patent/US20170131840A1/en
Publication of WO2015195287A1 publication Critical patent/WO2015195287A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • a viscoelastic material is present between the fulcrum and the first surface
  • the pressure-sensing touch system further comprises an additional electromagnetic sensor that detects deflection of the first surface
  • the additional electromagnetic sensor is located on an opposite side of the fulcrum from the center of the electronic display.
  • the controller is further configured to compensate, based on deflection detected by the additional electromagnetic sensor, for displacement of the viscoelastic material.
  • the electronic display has a generally rectangular shape with first and second short sides and first and second long sides, first and second sensors of the plurality of pressure sensors are located along the first short side, third and fourth sensors of the plurality of pressure sensors are located along the second short side, a fifth sensor of the plurality of pressure sensors is centered along the first long side, and a sixth sensor of the plurality of pressure sensors is centered along the second long side.
  • the instructions further include calibrating the signals from the plurality of pressure sensors while no touch events are occurring on the electronic display. In other features, the instructions further include continuing to calibrate the signals from the plurality of pressure sensors as long as no touch events are occurring on the electronic display.
  • FIG. 3A is a graphical depiction of response sensitivity for an example touchscreen using a single sensor.
  • FIG. 4 is a front view of an example touchscreen assembly including a screen shot of an example game application.
  • FIG. 7 is a chart of force sensor response over time versus an ideal response profile.
  • FIG. 8 is a simplified cross-sectional view of a touchscreen assembly including an additional deflection sensor used to compensate for viscoelastic material drift.
  • touch location sensors 1 12 Integrated with the display 108 are touch location sensors 1 12. Although depicted in FIG. 1 separately, the touch location sensors 1 12 may form one or more layers of the display 108.
  • a F1 is the noise contributed by the first and second sensors to the measurement of force (F x ) at the first touch location
  • a F2 is the noise contributed by the first and second sensors to the measurement of force (F 2 ) at the second touch location
  • a s is the raw measurement noise present at the first and second sensors.
  • the noise parameters of all of the possible candidate subsets have been evaluated and the candidate subset with the lowest noise parameters is selected.
  • the force corresponding to the touch is calculated from the selected subset of force sensors. Control then returns the calculated force information.
  • control starts at 854, where noise parameters of a candidate subset of force sensors are determined based on a set of detected touches.
  • Control continues at 858, where if there are additional candidate subsets to evaluate, control returns to 854; otherwise, control continues at 862.
  • control selects the candidate subset having the lowest noise values and at 866 control calculates forces corresponding to the touches based on the selected subset. Control then returns the values of the calculated forces.
  • control determines whether a single touch is present. If so, control transfers to 1 120; otherwise control transfers to 1 124. At 1 120, control selects the sensor having the highest sensitivity for the location of the single touch. At 1 128, control calculates the amount of force
  • control selects a subset of force sensors having the lowest noise for the currently occurring multiple touches.
  • control calculates the forces corresponding to those touches using the selected subset of sensors. For example only, when a pair of touches is detected by the touch location sensors, the subset of sensors may comprise two sensors.
  • control estimates the expected
  • module may be replaced with the term circuit.
  • the term module may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC); a digital, analog, or mixed analog/digital discrete circuit; a digital, analog, or mixed analog/digital integrated circuit; a combinational logic circuit; a field programmable gate array (FPGA); a processor (shared, dedicated, or group) that executes code; memory (shared, dedicated, or group) that stores code executed by a processor; other suitable hardware
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • the apparatuses and methods described in this application may be partially or fully implemented by one or more computer programs executed by one or more processors.
  • the computer programs include processor-executable instructions that are stored on at least one non- transitory, tangible computer-readable medium.
  • the computer programs may also include and/or rely on stored data.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention concerne un système tactile sensible à la pression destiné à un affichage électronique et comprenant une pluralité de capteurs de pression et un contrôleur. Chaque capteur de pression de la pluralité de capteurs de pression est configuré pour générer un signal indicatif d'une pression appliquée à une surface de l'affichage électronique. Le contrôleur est configuré pour (i) recevoir des coordonnées spatiales d'une pluralité d'événements de toucher ayant lieu simultanément sur l'affichage électronique, (ii) sélectionner un sous-ensemble de la pluralité de capteurs de pression, et (iii) calculer des valeurs de pression correspondant respectivement à la pluralité d'événements de toucher d'après les coordonnées spatiales et les signaux provenant du sous-ensemble sélectionné. Le sous-ensemble sélectionné est un sous-ensemble propre.
PCT/US2015/032884 2014-06-17 2015-05-28 Algorithmes et mise en œuvre de capteurs de pression de toucher WO2015195287A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580042334.8A CN106575185A (zh) 2014-06-17 2015-05-28 触控压力传感器的算法及建构
KR1020177000978A KR20170016981A (ko) 2014-06-17 2015-05-28 터치 압력 센서들의 알고리즘들 및 구현
US15/319,176 US20170131840A1 (en) 2014-06-17 2015-05-28 Algorithms and implementation of touch pressure sensors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462013120P 2014-06-17 2014-06-17
US62/013,120 2014-06-17

Publications (1)

Publication Number Publication Date
WO2015195287A1 true WO2015195287A1 (fr) 2015-12-23

Family

ID=53476979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/032884 WO2015195287A1 (fr) 2014-06-17 2015-05-28 Algorithmes et mise en œuvre de capteurs de pression de toucher

Country Status (5)

Country Link
US (1) US20170131840A1 (fr)
KR (1) KR20170016981A (fr)
CN (1) CN106575185A (fr)
TW (1) TW201606526A (fr)
WO (1) WO2015195287A1 (fr)

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TWI627568B (zh) * 2016-04-29 2018-06-21 樂金顯示科技股份有限公司 觸控面板裝置及其驅動方法與單晶片觸控面板驅動裝置
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US9690408B1 (en) 2014-09-26 2017-06-27 Apple Inc. Electronic device with an integrated touch sensing and force sensing device
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EP3446200B1 (fr) * 2016-04-20 2023-05-31 Nextinput, Inc. Dispositif électronique sensible à la force
TWI709060B (zh) * 2016-09-09 2020-11-01 宏達國際電子股份有限公司 可攜式電子裝置、及其操作方法、與使用此方法之記錄媒體
US10664092B2 (en) 2016-09-09 2020-05-26 Htc Corporation Portable electronic device, operating method for the same, and non-transitory computer readable recording medium
TWI621971B (zh) * 2016-12-30 2018-04-21 華碩電腦股份有限公司 書寫姿勢提醒方法與使用其之電子系統
US10353506B2 (en) * 2017-06-16 2019-07-16 Apple Inc. Dual resistive strain and pressure sensor for force touch
US10871847B2 (en) 2017-09-29 2020-12-22 Apple Inc. Sensing force and press location in absence of touch information
KR102447185B1 (ko) * 2018-01-02 2022-09-27 삼성전자 주식회사 포스 센서의 압력값 보상 방법 및 이를 사용하는 전자 장치
KR102139808B1 (ko) * 2018-03-28 2020-07-31 주식회사 하이딥 복수 채널을 구성하는 압력 센서, 이를 포함하는 터치 입력 장치 및 이를 이용한 압력 검출 방법
TWI666574B (zh) * 2018-05-22 2019-07-21 義隆電子股份有限公司 判斷觸控裝置上之觸控物件力道及觸控事件的方法
KR102124622B1 (ko) * 2018-06-22 2020-06-18 주식회사 하이딥 터치입력장치의 공통모드노이즈 제거 방법 및 동일 방법으로 구현된 터치입력장치
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CN111176473A (zh) * 2018-11-12 2020-05-19 北京钛方科技有限责任公司 触控板的按压力识别方法及系统
US11346927B2 (en) * 2019-05-16 2022-05-31 Qualcomm Incorporated Ultrasonic sensor array control to facilitate screen protectors
US20200371632A1 (en) * 2019-05-24 2020-11-26 Apple Inc. Force Sensor and Coplanar Display
US11036327B2 (en) * 2019-09-09 2021-06-15 Apple Inc. 3D touch
KR20210047430A (ko) 2019-10-21 2021-04-30 삼성디스플레이 주식회사 압력 센서 및 이를 포함한 표시 장치
JP7298447B2 (ja) * 2019-11-08 2023-06-27 横河電機株式会社 検出装置、検出方法及び検出プログラム

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Also Published As

Publication number Publication date
TW201606526A (zh) 2016-02-16
US20170131840A1 (en) 2017-05-11
KR20170016981A (ko) 2017-02-14
CN106575185A (zh) 2017-04-19

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